Avatar for Username

Rechercher dans l’assistance

Évitez les escroqueries à l’assistance. Nous ne vous demanderons jamais d’appeler ou d’envoyer un SMS à un numéro de téléphone ou de partager des informations personnelles. Veuillez signaler toute activité suspecte en utilisant l’option « Signaler un abus ».

En savoir plus

Ce sujet de discussion a été archivé. Veuillez poser une nouvelle question si vous avez besoin d’aide.

Thunderbird saved/cached private key that I want to delete

  • 2 réponses
  • 1 a ce problème
  • 36 vues
  • Dernière réponse par Jacek Bilski

Jacek Bilski
Jacek Bilski
more options

I'm using an SSL certificate to sign and encrypt my mail. It was working OK. Then I bought myself a security key with a smartcard functionality (YubiKey 5) and moved my private key there. I also installed another "security device" using OpenSC and through that I can see, that there is indeed my certificate on this smartcard. The problem is that when I first decrypt a mail with this key, remove the security key from USB and restart Thunderbird, I can now encrypt, decrypt and sign mails as if I had my smartcard in USB port. So the whole security idea goes completely away.

I'm looking at my key4.db file, which looks like it contains still my private key, or at least traces of certificate (if I look inside using text editor). SQLite3 is also showing some inserts. I found out about certutil and tried to take a peek inside this key4.db, but it asks me for a password which I don't have.

What am I doing wrong? What did I miss? How can I remove from Thunderbird all traces of this private key and force it to ask me for this smartcard?

I'm using an SSL certificate to sign and encrypt my mail. It was working OK. Then I bought myself a security key with a smartcard functionality (YubiKey 5) and moved my private key there. I also installed another "security device" using OpenSC and through that I can see, that there is indeed my certificate on this smartcard. The problem is that when I first decrypt a mail with this key, remove the security key from USB and restart Thunderbird, I can now encrypt, decrypt and sign mails as if I had my smartcard in USB port. So the whole security idea goes completely away. I'm looking at my key4.db file, which looks like it contains still my private key, or at least traces of certificate (if I look inside using text editor). SQLite3 is also showing some inserts. I found out about certutil and tried to take a peek inside this key4.db, but it asks me for a password which I don't have. What am I doing wrong? What did I miss? How can I remove from Thunderbird all traces of this private key and force it to ask me for this smartcard?

Solution choisie

I think you need to remove cert9.db, and possibly the obsolete cert8.db, together with key4.db (and obsolete key3.db).

http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Thunderbird#Saved_passwords

http://kb.mozillazine.org/Files_and_folders_in_the_profile_-_Thunderbird

Lire cette réponse dans son contexte 👍 0

Toutes les réponses (2)

sfhowes
sfhowes
  • Top 25 Contributor
more options

Solution choisie

I think you need to remove cert9.db, and possibly the obsolete cert8.db, together with key4.db (and obsolete key3.db).

http://kb.mozillazine.org/Transferring_data_to_a_new_profile_-_Thunderbird#Saved_passwords

http://kb.mozillazine.org/Files_and_folders_in_the_profile_-_Thunderbird

Jacek Bilski
Jacek Bilski Auteur de la question
more options

OK, the method was a bit brutal, because, as expected, I had to enter all passwords to all accounts again, but now it does seem to finally work like expected.

Thanks